Crisis energética: El futuro de los combustibles fósiles (Energy Crisis: The Future of Fossil Fuels)

Algorithms might sound like a complicated tech term, but don't be intimidated, people actually use them every day. Using accessible language and full-color photographs, this book simplifies algorithms in an easy-to-understand way. Readers will be amazed to learn that an algorithm is just a set of steps for computers to follow to get things done. STEM topics from the Next Generation Science Standards are emphasized throughout the text. Sidebars featuring key terms help readers grow their tech vocabulary, and fact boxes provide additional opportunities to learn.

In What Is Money?, early readers learn the fundamentals of money and the differences between coins, bills, and their worth. Vibrant, full-color photos and carefully leveled text will engage early readers as they discover basic economic principles.

Martinho y su familia son unos emigrantes portugueses que llegan a Mallorca buscando una vida mejor, pero no les resulta fácil. Martinho conoce la dura labor de vender por las playas refrescos y frutas a los turistas, o la vergüenza del robo, los malos tratos y la incomprensión.

Explore outer space and learn about stars, galaxies, planets, asteroids and how these bodies are all related to one another. Featured in this book are photographs from outer space and related vocabulary.

Travel from the Egyptian pyramids, to the canals of Venice, to a space station, all within a single book! Each colorful page is filled with logic and observation games for curious minds. An answer key is included at the end of the book.